使用python檢測用戶登錄狀態

win32ts.WTSRegisterSessionNotification
監控計算機狀態改變
https://msdn.microsoft.com/en-us/library/aa383841(v=vs.85).aspx

用戶狀態改變後，執行函數myststa(event)，其中event表明用戶狀態信息，具體值查
看https://msdn.microsoft.com/en-us/library/aa383828(v=vs.85).aspx
代碼：

import win32con
import win32gui
import win32ts

WM_WTSSESSION_CHANGE        = 0x2B1

class WTSMonitor():
    className = "WTSMonitor"
    wndName = "WTS Event Monitor"
    def __init__(self):
        wc = win32gui.WNDCLASS()
        wc.hInstance = hInst = win32gui.GetModuleHandle(None)
        wc.lpszClassName = self.className
        wc.lpfnWndProc = self.WndProc
        self.classAtom = win32gui.RegisterClass(wc)
        style = 0
        self.hWnd = win32gui.CreateWindow(self.classAtom, self.wndName,
            style, 0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT,
            0, 0, hInst, None)
        win32gui.UpdateWindow(self.hWnd)
        win32ts.WTSRegisterSessionNotification(self.hWnd, win32ts.NOTIFY_FOR_ALL_SESSIONS)
    def start(self):
        win32gui.PumpMessages()
    def stop(self):
        win32gui.PostQuitMessage(0)
    def WndProc(self, hWnd, message, wParam, lParam):
        if message == WM_WTSSESSION_CHANGE:
            self.OnSession(wParam, lParam)
    def OnSession(self, event, sessionID):
        print(event)
        myststa(event)
if __name__ == '__main__':
    m = WTSMonitor()
    m.start()